Natural frequency/discretization/transfer function/Simulink
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi everyone!
I'm having a issue about how to get a natural frequency on a Matlab Function Block on Simulink. Here's what I got:
- g2 = ((G1*(G2+2*G_previous1+G_previous2))-(g_previous1*(2*C-2*A))-(g_previous2*(C+A-B)))/(A+B+C);
where g2 is a discretized signal based on a second order transfer function (G/ (s^2 + 2ksi wn + 2 wn^2))
where:
A = 4/(T^2);
B = (4*ksi*wn)/T;
C = (wn)^2;
my point is: I fixed the values of wn and ksi, but how can a give a step or damp to get the natural frequency of the system, since the g2, G2 and the previous ones are getting updated when I run my model?
2 Kommentare
VBBV
am 11 Okt. 2020
Use damp function to get the natural frequency and damping ratio
%if true
% code
% end
[wn zeta] = damp(sys)
Where sys is the discrete time transfer function of your model obtained using tf
Antworten (0)
Siehe auch
Kategorien
Mehr zu Sources finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!